baber/WOPTO huggingface dataset:
Patent GB-1438998-A (GB)
Title: Surgcal drapes
IPC: A61B19/08
Filed: 1973-11-13
Abstract: 1438998 Surgical drapes KENDALL CO 13 Nov 1973 52711/73 Heading A5R A surgical drape comprising a sheet 10 has a pocket 14 positioned between an aperture 12 in the drape and a side edge of the sheet, the pocket having a cavity and an upper edge 22 spaced from the sheet to define an opening facing towards the aperture whereby, in use, the fluid from the surgical site is received in the pocket. In one embodiment (Fig. 2), the pocket 14 is formed by folding a bottom edge (21) of a sheet 16 before attaching it to the sheet 10, the sheet 16 which is of plastics materials, cloth or paper being pleated horizontally or vertically at side edges 18 and at various points along the length of the pocket 14. The sheet 16 may be attached to the underlying sheet 10 at spots 30 and lines 32 below the upper edge 22. An absorbent material (33) (Fig. 3 not shown) either as a piece attached to the inner face (34) of the pocket or as a separate piece placed inside the pocket, and a liquid permeable, non-absorbent liner (592) (Fig 16 not shown) having a colour which contrasts with blood-red tint of a sponge (s) may be provided inside the pocket 14. In another embodiment (Fig. 4 not shown) the pocket 14 which is chevron-shaped is provided with an opening (36) at the point of the chevron. In the embodiments of Figs. 5 and 6, a rectangular reinforcement sheet 152 secured to the main sheet 150 has an aperture 163 in registration with an aperture 158 in the main sheet 150, and two pairs of longitudinally aligned fold lines 170a, 172a and 170b, 172b defining tucks 174a and 174b respectively, the tucks being secured to the reinforcement sheet 152 by lines of adhesive 176, and in another embodiment (Fig. 9 not shown) also by spots of adhesive (190) along an upper edge (182), to define pockets 178a and 178b each containing an absorbent material 133a or 133b either in the form of folded or rolled sheets, or a pad (Fig. 7 not shown), of cellulosic wadding or woven or non-woven fabric. In another embodiment (Figs. 10 and 11 not shown) pockets (278a, 278b) are formed in the main sheet (250) by folding the sheet along two pairs of longitudinally aligned lines in the manner described above. A drape (310) (Fig. 12 not shown) with a reinforcement sheet (352) secured to the main sheet (350) and having a pair of transverse fold lines (370, 372) which define a tuck (374), is also disclosed. Figs. 14 and 15 (not shown) disclose a tuck formed in the main sheet.
Patent GB-1127770-A (GB)
Title: Load lifting apparatus and overload protection devices therefor
Inventor: EVANS RALPH JAMES
IPC: B66D3/00
Filed: 1964-12-30
Abstract: 1,127,770. Overload protection devices for lifting gear. M. B. WILD & CO. Ltd. 10 Dec., 1965 [30 Dec., 1964], No. 52775/64. Heading B8B. An overload protection device for the hoist mechanism of a crane comprises an hydraulic system operating a winding drum motor switch and a channel sectioned saddle member 11 supported on an hydraulic plunger 14 and supporting an equalizing pulley 10 which takes half the load to be lifted on a hook carried by a flexible member supported between the equalizing pulley 10 and the winding drum. The plunger 14 is movable in a cylinder 13 which is in communication with a further cylinder 15 having a plunger 16 therein. The area of cylinder 13 is greater than that of cylinder 15 so that the plunger 16 therein moves a greater distance but with less force acting thereon, than the plunger 14. The plunger 16 is biased into its retracted position by a spring 19 acting on a flange 17 on the plunger. When a predetermined load on the pulley 10 is exceeded, the plunger 16 compresses spring 19 and actuates the winding motor switch 22 via lever 21, whereupon winding is halted.
Patent GB-1487356-A (GB)
Title: Chromium complex azo dyes
IPC: C09B45/48
Filed: 1974-12-06
Abstract: 1487356 Chromium complex azo dyes CIBA-GEIGY AG 6 Dec 1974 [7 Dec 1973] 52914/74 Heading C4P Novel 1:2 chromium complex dyes have the formula where A is the radical of a diazo component with the complex forming oxygen atom ortho to the azo group; B is the radical of a coupling component with the complex forming group -X- in the adjacent or ortho position to the azo group; X is O, NH, N-(alkyl), N-(aralkyl) or N-(aryl); Y is O or COO; R 1  is H or alkyl; R 2  is an optionally substituted phenyl or naphthyl radical bearing a carboxy or sulpho group; Q represents a cation; the ring b may carry a fused benzene ring and be substituted by halogen atoms or nitro, alkyl, alkoxy or optionally substituted arylazo groups and the radicals A and B are devoid of carboxylic and sulphonic acid groups. The dyes are prepared by forming the 1:1 chromium complex from either the azo or azomethine compound and then reacting with the non-metallized azo or azomethine dye; in the case where the 1:1 chromium complex of the azo dye is first formed, instead of reacting with the azomethine dye the appropriate amine and aldehyde components of the dye may be used to form the dye in situ. The dyes are used for colouring natural and synthetic polyamide fibres and leather.
Patent GB-1210932-A (GB)
Title: Carrier bag and method for producing same
Inventor: SENGEWALD KARL HEINZ
IPC: B65D30/00
Filed: 1967-11-22
Abstract: 1,210,932. Carrier bags. K. H. SENGEWALD. 22 Nov., 1967 [22 Nov., 1966; 30 Sept., 1967], No. 53244/67. Heading A4G. A plastics foil bag is formed from a band 12 with reinforcing strips of paper or plastics foil of the same or greater thickness than the bag foil stuck symmetrically with respect to the longitudinal axis 15 about which the band is folded and welded at 25, Fig. 3, to form a hose, the wall 23 being wider than wall 22 so that the side gussets 21, 32 will not interfere with the welding. In the embodiment of Fig. 7, the walls are of the same width so that, after welding the edges, the weld 25 lies within one of the side gussets. The bottom of the bag is formed by transversely welding and cutting the hose and the hand hole is punched through the reinforcements at the other end which is a straight edge or has a raised portion accommodating the hole. The foil may be printed on when flat as in Fig. 2, the gussetted edges and the reinforced sides presenting the same thickness.
Patent GB-1270206-A (GB)
Title: Valve and method of production
IPC: F01L3/14
Filed: 1970-11-10
Abstract: 1,270,206. Welding by pressure; making I.C. engine poppet valves. EATON YALE & TOWNE Inc. 10 Nov., 1970 [20 Nov., 1969], No. 53381/70. Headings B3A and B3R. [Also in Division F1] In a method of manufacturing a sodiumcooled poppet valve for an internal combustion engine sticks 52 of sodium are placed in the bore 26 of a stem portion 22 of a forged steel valve component 20 and a tip 30 for the stem is friction welded to the stem in a friction welding lathe (Fig. 5, not shown) to form a sealed enclosure for the sodium. External weld flash 50, 51 may be machined off after annealing and the valve then hardened. The internal flash 53, 54 is acceptable provided the bore 26, 36 is not closed by it. The forged valve component 20 is preferably of a corrosion and temperature resistant alloy steel (a specific chrome-alloy steel composition is given) and the tip 30 of a wearresistant steel.
Patent GB-1478397-A (GB)
Title: Supersensitized silver halide photographic emulsion
IPC: C09B23/00
Filed: 1974-12-10
Abstract: 1478397 Supersensitizing silver halide emulsions FUJI PHOTO FILM CO Ltd 10 Dec 1974 [10 Dec 1973] 53464/74 Heading G2C A silver halide emulsion is supersensitized with (i) at least one cyanine dye and (ii) at least one colourless heterocyclic organic base which is a benzothiazole, benzothiazolone, naphthothiazole, naphthothiazolone or a quinolone represented by one of the following Formulae: in which Y1 and Y<SP>2</SP> each complete an optionally substituted benzene or naphthalene nucleus; R<SP>3</SP> is H, C 1-4  alkyl, halogen, acetoxy, C 1-4  alkoxy, aralkyl, C 1-4  alkylcarbonyl, or hydroxy; R<SP>4</SP> is H or C 1-4  alkyl; Y<SP>3</SP> completes an optionally substituted benzene nucleus and R<SP>5</SP> is H or C 1-4  alkyl. The cyanine dye has the general Formula: in which Z I and Z<SP>2</SP> each complete a heterocyclic nucleus, R<SP>1</SP> and R<SP>2</SP> each represent an aliphatic or aromatic group, at least one of them being a substituted alkyl group containing a sulpho or carboxyl group, L is optionally substituted methine, X is an anion, m is 0, 1, 2 or 3 and n, p and q are each 0 or 1. The silver halide is preferably silver chlorobromide or chlorobromiodide, the grains having a 100 surface.
Patent GB-1246973-A (GB)
Title: Aluminium base alloys and anodes
Inventor: BROUGHTON TREVOR
IPC: C22C21/10
Filed: 1967-11-24
Abstract: 1,246,973. Aluminium alloys. BRITISH ALUMINIUM CO. Ltd. Nov. 25, 1968 [Nov. 24, 1967], No. 53546/67. Heading C7A. An Al-base alloy suitable for use in the as-cast condition as a galvanic anode consists, by weight, of: - Zn 1-15% In 0À005-0À1% Pb 0À005-1% optionally Sn 0À01-0À5% optionally Ga 0À005-0À017% Al of at least 99À8% purity and impurities - balance. Impurities should not exceed 0À15% Si and 0À15% Fe.
Patent GB-1245421-A (GB)
Title: Testing materials
Inventor: SEYMOUR DONALD GLENFIELD
IPC: G01M99/00
Filed: 1967-11-25
Abstract: 1,245,421. Turbines. ROLLS-ROYCE Ltd. Nov.22, 1968 [Nov.25, 1967], No. 53732/ 67. Heading F1T. [Also in Division G1] A gas turbine having a stator blade 60, Fig. 2 and a rotor blade 61 has apparatus for testing under running conditions the creep behaviour of its rotor blade, which apparatus comprises a housing 71 containing an air motor vane 70 fixed at one end to a portion 67 of a test rod 65 made of a material having creep characteristics corresponding to that of the rotor blades, the rod being rotatable at one end in a bearing 68 and in the blade 60 but fixed to the blade at its outer end 66. Air-pressure to turn the vane 70 and apply torque to the test rod 65 is ducted to the housing 71 via a proportioning valve 74, Fig. 5, and is controlled by the fuel pump which passes fuel through a pipe line 85 and a port 86 to a pipe line 90, the pressure in which pipe line 90 is regulated by a piston connected to a speed governor 54 and by a constriction 89. This fuel pressure, which is proportional to the square of the engine speed, then acts on a diaphragm 95 to control a valve 96 so that air under pressure fed to the other side of the diaphragm is also at pressure proportional to the square of the engine speed. Now the centrifugal force on the rotor blade 61 is proportional to the square of the speed, and given sufficient similarity in the materials of the rod 65 and the blades 61 any creep or permanent deformation of the rod 65 must correspond to the creep experienced by the blades 61 and is indicated by a pointer 77 fixed to the vane. The pressure in the line 73 could be derived from a centrifugal fuel pump instead of a governor.
Patent GB-1272697-A (GB)
Title: Friction gearing
Inventor: MAICHEN KARL
IPC: F16H15/42
Filed: 1970-11-11
Abstract: 1,272,697. Expanding-pulley gear. K. MAICHEN. 11 Nov., 1970 [1 April, 1970; 5 Nov., 1970], No. 53742/70. Heading F2D. Pairs of coned flanges 8, 8<SP>1</SP> and 9, 9<SP>1</SP> of expanding pulleys on driving and driven shafts 2, 5 respectively, are drivingly connected by a synthetic plastics friction ring unit which is constructed in three sections, the centre section 11<SP>11</SP> bearing with its chamfered edges, between the inner faces of the two driving pulley flanges 8, 8<SP>1</SP> and being connected by integral flanges 32, 32<SP>1</SP> via axially slidably splined portions 33, 331 to the two other ring sections 11, 11<SP>1</SP> which bear with unequally chamfered edges 12, 13 and 12<SP>1</SP>, 131 between the outside faces of the driving pulleys 8, 8<SP>1</SP> and the faces of the driven pulleys 9, 9<SP>1</SP>, the respective cone angles of the driving and driven pulley flanges being such that the gaps 35, 35<SP>1</SP> match the unequally chamfered edges 12, 13 &c. of the outer ring sections and converge towards the driven shaft 5 whereby the friction ring unit is upwardly biased, i.e. is continuously subjected to an automatic return force acting towards the drive shaft 2, ratio change being effected by a hand wheel 18 which moves a screwed rod 16 having a forked end 15 carrying a pair of rollers 14 which bear on the periphery of the centre section 11<SP>11</SP> of the friction ring. Thus for ratio change, the hand wheel 18 only effects downward movement of the friction ring unit 11 to a smaller diameter of the driven cones 9, 9<SP>1</SP>, the upward return of the friction ring unit being automatically effected by the converging shape of the gaps 35, 35<SP>1</SP>, the movement of the driven pulley flanges 9, 9<SP>1</SP> during ratio change simultaneously compressing or releasing plate springs 10, 10<SP>1</SP> which support the driven flanges 9, 9<SP>1</SP> at their outer ends and press the driven pulley flanges 9, 9<SP>1</SP> towards the driving pulley flanges 8, 81.
Patent GB-1205040-A (GB)
Title: Negative corona device
IPC: G03G15/02
Filed: 1967-11-27
Abstract: 1,205,040. Electrostatic charging apparatus. RANK XEROX Ltd. Nov.27, 1967 [Dec.1, 1966], No.53808/67. Heading G2H. A corona discharge device for depositing a uniform negative charge on a surface comprises a corona discharge electrode 10, means to apply a negative corona generating potential to the electrode and electrostatic field generating means located on the opposite side of the electrode to the surface to decrease the divergence of the cone of negative charges produced by each emission point on the electrode. The field generating means may be a field electrode 12 connected to a potential source 16 while the electrode 10 may be a round wire or a knife edge. In operation, a negative potential 14 is applied to corona wires 10 which produces discrete glands (22) Fig.1 (not shown) A negative potential equal to or higher than that of the corona electrode is suppled to plate 12 to produce a repelling field which narrows the radial spread of electrons as indicated by the broken lines Fig.1 (not shown). The glow points (22) move closer together and eventually merge to provide a uniform charge on the insulating layer 6 Fig.2. The negative potential 14 may be of the 4-11 kilo-volts and the potential 16 between 7, 000 and 8,000 volts.
Patent GB-1311559-A (GB)
Title: Semiconductor diode array vidicon target and method of preparing said target
IPC: H01J29/45
Filed: 1970-11-12
Abstract: 1311559 Anodizing semi-conductor material RCA CORPORATION 12 Nov 1969 [12 Nov 1969] 53880/70 Heading C7B [Also in Division H1] A target for a camera tube in the form of a semi-conductor diode array is liable to include defective diodes; the effect of these is mitigated by anodizing the surface of the target so that an insulating coating is applied over the defective diodes. Preferably the target comprises a silicon substrate with P type regions forming the diode and separated by insulating areas of silicon dioxide. The target is coated with protective wax except on its front surface and placed as anode opposite a platinum cathode in an electro-chemical cell coating an electrolyte of 10% pottassium hydroxide and 90% water. The voltage across the cell should be below and within about 10 volts of the breakdown voltage of the normal diodes; if the breakdown voltage of the normal diodes is 38 volts, the potential across the cell may be 35 volts applied for 20 minutes. This produces an insulating coating of distinctive appearance, probably an oxide of silicon which may be 0À2 microns thick over the defective diodes but only 0À025 microns thick over the normal diodes which have less conductivity, and the latter coating may be removed by etching in a hydrogen fluoride solution. The process has the incidental effect of filling any pin-holes in the silicon dioxide areas separating the diodes, and may also be applied to targets therein the diodes are provided with contact pads.
Patent GB-1399132-A (GB)
Title: Gas discharge devices
Inventor: SCHMERSAL LARRY J
IPC: G09G3/28
Filed: 1972-05-02
Abstract: 1399132 Matrix displays OWENS-ILLINOIS Inc 2 May 1972 [3 May 1971] 54029/74 Divided out of 1399131 Heading G5C The subject matter of this Specification is identical with that in Specification 1,399,131 but the claims are concerned with a method of lengthening the life of a non-cellular gas discharge storage device with crossed conductor arrays insulated from the gas wherein the width of sustain pulses is made less than 10 Ás.
Patent GB-1469425-A (GB)
Title: Medical electrode
IPC: A61B5/274
Filed: 1974-12-13
Abstract: 1469425 Electrodes N D M CORP 13 Dec 1974 [17 Dec 1973 27 Nov 1974] 54032/74 Heading A5R A medical electrode comprises a conductive portion which comprises a galvanically inactive and a galvanically active conductor; the galvanically active conductor being present at least at the surface (33) where the electrode is to contact a subject via an electrolyte. A portion (28) spaced from the surface is shaped for electrical connection to monitoring equipment. The galvanically inactive conductor is preferably carbon powder disposed in a binder of plastics material, rubber or a ceramic. The galvanically active material may be almost any metal, preferably pure and may be dispersed as a powder through the binder or may be present only at the surface as particles or paint. Preferred weight percentages are metal >0.7 but preferably 15-30, carbon 20-50 (preferably 25-30) and binder 40-60. Many examples of materials are given, the preferred metal being silver (15%) or zinc (30%) for electrodes stored dry. As shown, the conductive material 30 serves as a stud to retain a porous plastics sheet 22 between members 12. An electrolyte soaked sponge 40 makes contact between subject and the conductive portion and the electrode is held in place by adhesive layer 24 protected by release paper 25. The contact portion 28 may have a metal cover or may have a splined hole into which a plug force fits. Other forms of electrode including a suction cup and a bracelet are described.
Patent GB-1456520-A (GB)
Title: Tape measures
IPC: G01B3/10
Filed: 1973-11-21
Abstract: 1456520 Tape measure RABONE CHESTERMAN Ltd 12 Sept 1974 [21 Nov 1973]  54260/73 Heading G1M A tape measure comprising a rotatable hub 12, a tape drum 18 rotatably mounted on the hub, a winding handle pivotally mounted on the hub for movement between an inoperative position, Fig. 1 and an operative position and a clutch member 19 slidable within the hub, the arrangement being such that when the winding handle is moved to its operative position, a cam 16a on the handle moves the clutch member axially against the bias of a spring 21 so that a port 20 extending laterally from the clutch member through a slot in the hub engages teeth 18e on the drum to clutch the hub to the  drum. As shown, a pair of ports 20 each engage teeth 18e during clutching. A brake member 22 co-operates with ratchet teeth (not shown) on the internal periphery of the rim 18a of the drum 18, the teeth including an arcuate cam shaped side so that during winding in of the tape, the brake member 22 is automatically moved to its non-operative position by a camming action.
Patent GB-1445479-A (GB)
Title: Electrical fuses
IPC: H01H69/02
Filed: 1974-12-16
Abstract: 1445479 Parametric amplifiers RAYTHEON CO 16 Dec 1974 [22 Jan 1974] 54277/74 Heading H3X [Also in Divisions H1 and H2] A multiple diode microwave parametric amplifier which includes fuses and diodes manufactured so that the fuses are spaced from a substrate (see Division H1) comprises a substrate 40, on which are formed fuses 44a- 44c to which diodes 46a-46c are connected. Incoming signals which are to be amplified are coupled on line 41 and a microwave circulator 48 which directs them to D.C. blocking capacitors 47a-47e. The amplified signals are coupled back from diodes 46a-46e through leads 52a- 52e and capacitors 47a-47e to the circulator 48 and output line 45. Several such diode amplifiers may be cascaded or connected in parallel for additional power gain.
Patent GB-1279663-A (GB)
Title: Improved extruder screw
IPC: B29C48/62
Filed: 1969-11-06
Abstract: 1279663 Extruder Screw MIDLAND-ROSS CORP 6 Nov 1969 [14 Feb 1969] 54480/69 Heading B5A The efficiency of melting of particulate thermoplastics material e.g. polyvinyl chloride, within the heated barrel of a screw extruder, is improved by utilizing, in the melting region of the screw, the displacing action of the interior barrel surface to constantly displace material, melted in contact therewith, from a screw channel 10 of progressively decreasing volume effected by constantly decreasing depth, over an intervening land 12 into an adjacent channel 11 of constantly increasing volume. The screw feed section comprises a single channel 8 of constant root diameter and pitch, connected to the melting region by a short transition region wherein the flight width 7 is increased to decrease the width of the channel over a portion 10a to that of the portion 10 which remains constant throughout the melting region as the depth thereof decreasss. The adjacent channel 11 of progressively increasing depth is commenced at the melting zone in the widened flight at 14, to be defined between a trailing flight portion 16 and a leading flight portion 12 of lesser height providing the intervening land over which the molten material is displaced. The trailing edge 6 of the flight is of constant pitch throughout the screw. The channel 11 is merged over a short transition section, to a metering section 11b of decreased depth and increased width. The barrel is heated either by electric strip heaters, or by fluid jackets. The feed section may alternatively comprise a channel of the same width as channel 10, but of decreasing depth theretowards.
Patent GB-1184902-A (GB)
Title: Apparatus for Filling Bags with a Finely Divided or Powdery Substance
Inventor: ROWELL FRANK JOHN
IPC: B65B39/00
Filed: 1965-12-23
Abstract: 1,184,902. Packaging in tubed webs. F. J. ROWELL. 23 March, 1967 [23 Dec., 1965], No. 54533/65. Heading B8C. A valve 11 at the bottom of a reciprocating tube 1 controls the delivery of material into sachets formed by transversely welding a tube formed continuously by folding a web about a mandrel 2. In the form described transverse sealing jaws (not shown), carried on a reciprocable carriage 4, close over the end of the tube to form a transverse seal, and with the jaws still in engagement on the tube, the carriage is lowered to pull a length of tube corresponding to one bag length, off the mandrel. The nozzle, which is spring mounted on the carriage, also moves downwards and a cylinder 12 opens the valve to fill the bag. After pistons 14 vibrate the nozzle, the carriage is raised to withdraw the nozzle. A cylinder 12 controls the valve 11.
Patent GB-1356775-A (GB)
Title: Method and device for breaking away pre-stamped pieces of material in sheet-like webs of material
IPC: B26F3/00
Filed: 1972-11-27
Abstract: 1356775 Ejecting blanks from sheet-material WUPA-MASCHINENFABKIK GmbH & CO KG 27 Nov 1972 [27 Nov 1971] 54625/72 Heading B4B A method of breaking away blanks 54 from a moving web of material comprises progressively bringing a break-away matrix 28 up to the speed of the web to make contact with one side thereof on attaining synchronous speed therewith, also bringing up to the speed of the web pairs of members 14, 20 so as to grip the associated blank and breaking away the gripped blank from the material supported on the matrix. The members 14, 20 are in the form of pins adjustably mounted on rails 10, 16 respectively, the pin 20 being axially movable against the action of a spring (22), Fig. 1 (not shown). The rails 10, 16 are mounted in carriages 36, 36<SP>1</SP> respectively which are given a circular motion by means of cranks 38, 40 and 38<SP>1</SP>, 40<SP>1</SP>. The matrix comprises a plate provided with holes corresponding to the position of the blanks and is moved by suitable mechanism such that it rises into contact with the web, travels at the same speed during the ejecting operation and then returned and lowered ready for the next cycle. The operation of the device is clearly shown in Fig. 3.